Improvement in lamp-wick adjusters



GEEIcE.

LEVI BENNETT LATHROP, OF SAN J OSE, CALIFORNIA.

IMPROVEMENT IN LAMP-WICK ADJUSTERS.

' Specification forming part of Letters Patent No. 119,275, datedSeptember 26, 1871.

`To all whom it may concer/n:

Be it known that I, LEVI BENNETT LATEROP, of San J ose, in the county ofSanta. Clara and in the State of California, have invented an ImprovedDevice for Adjusting Lamp-Wicks; of

which the following is a specification, reference' being had to theaccompanying drawing.

The object of my invention is to provide a device that will move thewick up and down in an even, certain, and regular manner, and Withoutunnecessary friction. This I accomplish by the employment of teeth thathave but little thick- `ness in the direction of the axes of the wheels,

and the outer extremities of which terminate in an edge in a plane atright angles to the axis of the Wheel or roller from which they project;such teeth easily penetrate the Wick and enter or pass through betweenthe threads forming the warp and lift or pull down the wick by thecross-threads or llin g.

In order that the teeth may pass nearly or' quite through the wick andrevolve Without interfering with each other, those on one Wheel orroller must not be in the same plane as those on the opposite `wheel orroller.

Inr the drawing, Figure l is a sectional View of a burner for a kerosenelamp having` my improvement. Fig. 2 represents the Wick and adjustingapparatus. Fig. 3 is an end view of one of the toothed wheels. Fig. 4 isan enlarged view of the adjusting apparatus, showing the wick-tube insection.

posite each other," the teeth of which, having but little thickness inthe direction of the axes of the parallel shafts and terminating inedges at the outer circumference in the vertical plane in which theyrevolve, easily penetratebetweenthe threads of the warp, and, catchingthe lling or crossthreads, force the wick up or down, with very littleloss of power by friction and without slip or irregular action. Thehorizontal pressure exerted by one wheel is met by an equal pressurefrom the opposite wheel, and almost the entire power applied isutili-Zed in moving the Wick up or down the Wick-tube A, which, with myimprovements, acts merely as a guide for the wick. H is a cap, circularin form, and litting closely upon the body or shell I in which theWick-tube is supported, and above which the shafts D are arranged. Thehead of this cap is provided With a slot, h, through which the Wick-tubepasses when the cap is in its proper place, and the rim is notched uponits long edge at points diametrically oppositel to each other, thesenotches f1tting closely on shaft D and serving to support them (theshafts) against lateral displacement. The cap is secured in place bymeans ofthe screw H', which passes through the perforations h.

Having thus described my invention, What I claim as new, and desire tosecure by Letters Patent, is-

The employment of teeth short in the direction of the axes of theshafts, and terminating in edges at their outer extremities in a planeat right angles to the axis of the wheel or roller from which theyproceed, in a manner substantially as hereinbefore described, and forthe purposes hereinbefore set forth.

In testimony whereof I have hereunto set my hand this 25th day ofJanuary, A. D. 1871.

` LEVI BENNETT LATHROP.

Witnesses:

E. SKERRITT,

GEORGE PoivLERoY.

